Why tie up a bunch of computing power on a car system you'll probably use a couple hours a week? (uh, because we live in a land of computing excess? Oh, wait, that was a rhetorical question.) Car gadget site Foursprung uncovered an account of a tricky in-dash integration project involving an Audi A6, an Apple Powerbook, Apple's Front Row media management software and some deft wire twiddling behind the scenes. While the delicate PB rides in the trunk, floating contentedly on a bed of netting to insulate it from bumps, the driver can operate the systems — including GPS — via Bluetooth, with a Sony Ericsson K750i phone as a remote control.